WO2005118377A1 - 建設機械のキャビン - Google Patents
建設機械のキャビン Download PDFInfo
- Publication number
- WO2005118377A1 WO2005118377A1 PCT/JP2005/010127 JP2005010127W WO2005118377A1 WO 2005118377 A1 WO2005118377 A1 WO 2005118377A1 JP 2005010127 W JP2005010127 W JP 2005010127W WO 2005118377 A1 WO2005118377 A1 WO 2005118377A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pillar
- cabin
- center pillar
- center
- view
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/06—Drivers' cabs
- B62D33/0617—Drivers' cabs for tractors or off-the-road vehicles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/16—Cabins, platforms, or the like, for drivers
- E02F9/163—Structures to protect drivers, e.g. cabins, doors for cabins; Falling object protection structure [FOPS]; Roll over protection structure [ROPS]
Definitions
- the present invention relates to a cabin of a construction machine such as a hydraulic shovel.
- the hydraulic excavator includes a crawler-type lower traveling body 1, an upper revolving body 2 mounted on the lower traveling body 1, and a work attachment 3 mounted on the upper revolving body 2.
- the upper revolving superstructure 2 is provided with a cabin 4.
- the work attachment 3 is provided on the right side of the upper revolving unit 2 (the right side viewed from the operator seated in the cabin 4; the same applies to the left, right, front and rear directions described below), and the cabin 4 is provided on the left side.
- the cabin 4 is provided with an entrance which is opened and closed by a door 5 on the left side thereof.
- the frame in order to satisfy the above condition (A), the frame needs to have sufficient strength and rigidity.
- the amount of components (especially, the amount of components on the front side) is reduced as much as possible so that the frame components do not obstruct the view! It is desirable to reduce the cross-sectional size.
- the left and right front pillars 7, 8 and the upper front cross member 14 form the front gate structure
- the left and right rear pillars 9, 10 and the rear cross member 16 To form the rear gate structure, and connect the front and rear gate structures with the left and right
- the members are connected by 12,13 members.
- Fig. 18, 11 is the center pillar
- 15 is the lower front cross member.
- Patent Document 1 a technique is provided in which a connecting member for dispersing a load applied to a roof portion widely over the entire frame is provided. Has also been proposed.
- Patent Document 2 a configuration in which a wide main pillar extending upward and rearward at an intermediate portion force in the front-rear direction on both left and right side surfaces is provided.
- FIG. 3 there has been proposed a configuration in which the portal structures on the front and rear sides of the frame 6 are connected to each other by a plate-shaped roof material.
- Patent Document 4 Japanese Patent Application Laid-Open No. 2004-42739
- Patent Document 2 JP-A-2000-327462
- Patent Document 3 JP 2001-123482 A
- Patent Document 4 JP 2001-140283 A
- the left and right front pillars 7, 8 and the upper front cross member 14, which are located in the front view, must also have the same cross-sectional size as the other constituent members, so that the front view is improved. They cannot meet the demands.
- the present invention provides a cabin of a construction machine that simultaneously satisfies the two reciprocal requirements of expanding the field of view while suppressing deformation such as when the vehicle falls down, and that can realize both low power and light weight. is there.
- the present invention employs the following configuration.
- a center pillar located at an intermediate portion in the front-to-rear direction on one of the left and right sides, and a first side located at one of the front and rear sides of the center pillar at an interval.
- a pillar and a second side pillar located on the right and left opposite sides to the first side pillar are provided at respective vertices of a triangle in plan view, and the center pillar, the first and second side pillars are provided.
- the lateral load applied to the frame due to a fall or the like is intensively received by the portal structure formed at the front or rear of the cabin. ⁇ High rigidity is not required.
- the portal structure has high strength as a whole. • High rigidity and high! ⁇ Demonstrate load-bearing performance, especially in terms of torsional load resistance.
- a center pillar having a large cross-sectional size is provided on each of the left and right sides and a gate-shaped structure is formed at the center of the frame by connecting the upper ends thereof (the technique of Patent Document 4). Since no prominent protruding portion appears, it is advantageous in terms of design.
- the center pillar, the first and second side pillars are disposed at each vertex of a triangle in plan view, and the upper ends thereof are connected by a connecting member.
- the outer shape may be configured to be substantially triangular in plan view.
- the ceiling itself of the gate-shaped structure formed by the connecting members does not necessarily have to be substantially triangular in plan view.
- some of the connecting members are bent into a cross-shaped shape.
- the planar shape of the ceiling may be non-triangular.
- FIG. 1 is a perspective view showing a frame configuration of a cabin according to a first embodiment of the present invention.
- FIG. 2 is a plan view of the same.
- FIG. 3 is a diagram showing a comparison result of weight between the embodiment and a conventional frame configuration.
- ⁇ 4] (a) (b) ( C ) is a perspective view showing another example of arrangement of components other than the gate-shaped structure when the frame configuration of the first embodiment is adopted.
- FIG. 5 is a view showing a deformation state due to a lateral load in the frame configuration of the first embodiment as seen from behind.
- FIG. 6 is a perspective view showing a frame configuration of a cabin according to a second embodiment of the present invention.
- FIG. 7 is a perspective view showing a frame configuration of a cabin according to a third embodiment of the present invention.
- FIG. 8 is a diagram showing displacement ratios according to frame configurations of the first to third embodiments of the present invention.
- FIG. 9 is a perspective view showing a frame configuration of a cabin according to a fourth embodiment of the present invention.
- FIG. 10 is an enlarged cross-sectional view taken along line XX of FIG. 9.
- FIG. 11 is a perspective view showing a frame configuration of a cabin according to a fifth embodiment of the present invention.
- FIG. 12 is a perspective view showing a frame configuration of a cabin according to a sixth embodiment of the present invention.
- FIG. 13 is a perspective view showing a frame configuration of a cabin according to a seventh embodiment of the present invention.
- FIG. 14 is a perspective view showing a frame configuration of a cabin according to an eighth embodiment of the present invention.
- FIG. 15 is an enlarged cross-sectional view taken along line XV—XV in FIG. 14.
- FIG. 16 is a perspective view showing a frame configuration of a cabin according to a ninth embodiment of the present invention.
- FIG. 17 is a schematic side view of a hydraulic shovel to which the present invention is applied.
- FIG. 18 is a perspective view showing a frame configuration of a conventional cabin.
- the frame 21 of the cabin which is strong in the first embodiment, includes front and rear front pillars 22, 23, upper and lower front cross members 24, 25, and a front-rear middle part on the entrance side (left side) as frame components that form a framework.
- the vehicle includes a center pillar 26 erected at the rear, and rear pillars (first and second side pillars) 27 and 28 erected at the left and right sides of the rear.
- the center pillar 26 may be provided at a central portion in the front-rear direction on the left side, or may be provided at a position shifted or deviated from the central portion in the front-rear direction.
- the center pillar 26 and the left and right rear pillars 27, 28 are provided so as to be located at the vertices of a triangle in plan view.
- a left rear roof as a connecting member is provided between the center pillar 26 and the upper end of the left rear pillar 27. Member 29 will be established and the center and both rear pillars 26,27,
- the first and second cross members as connecting members in a V-shaped arrangement between the respective upper end portions
- the pillars 26 to 28, which are arranged asymmetrically on the left and right, are connected to the connecting member 2 at the rear of the cabin.
- the right rear pillar 28 is disposed at a center position in the front-rear direction between the center pillar 26 and the left rear pillar 27, and the planar shape of the gate-shaped structure A is a substantially isosceles triangle (see FIG. 2).
- a left front roof member 132 is extended between upper left portions of the left rear roof member 29 and the left front pillar 22, and a right roof member 33 is extended between upper end portions of the right rear pillar 28 and the right front pillar 23, respectively. Have been.
- the members constituting the frame 21 including the constituent members of the gate-shaped structure A are integrally welded to each other at a joint portion between the members.
- a side load (indicated by a double-line arrow in FIG. 2) transferred to the middle portion of the left side surface of the frame 21 due to a fall or the like is transmitted to the center pillar 26, and from there.
- a side load (indicated by a double-line arrow in FIG. 2) transferred to the middle portion of the left side surface of the frame 21 due to a fall or the like is transmitted to the center pillar 26, and from there.
- the lateral load is intensively received by the portal structure A, and the entire structure A is deformed to absorb the lateral load.
- the front components irrelevant to the portal structure A are It hardly shares the load and does not require high strength and high rigidity.
- each of the front-side constituent members needs to be minimized as shown in the figure, and its cross-sectional size is also small.
- FIG. 2 the observable area where the operator O in the cabin can see through without being disturbed by the constituent members is hatched. Further, in the figure, reference numeral 3 denotes a work attachment (see FIG. 17) attached to the right side of the cabin.
- FIG. 3 shows a weight comparison between the conventional cabin (frame 6) shown in FIG. 18 and the cabin (frame 21) according to the first embodiment.
- the weight can be reduced to about 20% of the conventional cabin.
- FIG. 4 (a) to 4 (c) show other examples of the arrangement of the front components
- FIG. 4 (a) shows an example in which the right front pillar 23 and the lower front cross member 25 of the first embodiment are omitted.
- (B) is the left front pillar
- the gate-shaped structure A which receives loads in a concentrated manner, comprises three asymmetrically arranged left and right rear pillars (center and left and right rear pillars 26 to 28) at the upper end of each other at the left rear roof and both crosses. Because it is a triangular shape in a plan view in which the members 29 to 31 are integrated, the load transmission This makes it possible to maximize the strength of each member and obtain high overall load-bearing performance (particularly torsional rigidity).
- the planer shape of the portal structure A is an isosceles triangle
- the torsional stiffness is the largest of the triangles, and is the most deformed.
- the figure shows a case where the deformed state of the gate-shaped structure A is viewed from behind, and each component member (the center and the left and right rear pillars 26 to 28) of the gate-shaped structure A is uniformly deformed. Therefore, the left and right front pillars 22, 23, which are not components of the structure A, are hardly deformed, that is, the load is intensively received by the portal structure A, and the components of the portal structure A are It can be seen that the load is transmitted and the entire structure is deformed as a whole.
- O indicates an operator in the cabin.
- the portal structure A has a center pillar 26 and left and right rear villas (first and second side pillars) 27 and 28 arranged at respective apexes of a triangle in plan view.
- the outer shape may be configured to be substantially triangular in plan view.
- the ceiling itself formed by each of the members 29 to 31 does not necessarily have to be substantially triangular in plan view.
- the first cross member 30 or the second cross member 31 is not linear but is bent in a U-shape or the like.
- the outer shape of the ceiling portion may be formed to be non-triangular in plan view. This is the same in other embodiments described below.
- FIGS. 6 and 7 show two examples in which the position of the right rear pillar 28 in the front-rear direction is changed.
- FIG. 8 shows a comparison result of the load-bearing performance of the portal structure A exerted on the first to third embodiments.
- the right rear pillar 28 is provided at the center position. In the case of the first embodiment, the amount of deformation can be minimized.
- both of the second and third embodiments can exhibit high load performance close to that of the first embodiment.
- a rear wall 34 is provided in a substantially lower half portion between the left and right rear pillars 27 and 28. I have.
- the back wall 34 may be formed only of a plate material, or may have reinforcing beam members 35 fixed to a plurality of upper and lower (or left and right) locations on the inner surface side as shown in the figure.
- Providing the rear wall 34 in this manner can improve the load transmission performance between the left and right rear pillars 27, 28.
- FIG. 11 shows a fifth embodiment relating to the configuration of the portal structure.
- the upper ends of the right rear pillar 28 and the left front pillar 22 are connected to a third cross member 36 as an additional connecting member. By connecting them together, another portal structure B is formed adjacent to the front of the portal structure A.
- the force load supporting force which is disadvantageous in terms of the front view, is strengthened as compared with the case of the first embodiment, which is suitable for the case where safety is emphasized.
- the left rear pillar 27 of the first embodiment is eliminated, while the left front pillar 22 is formed as a strength member.
- the first cross member 38 between the upper ends of the left roof member 37, the left front pillar 22 and the right rear pillar 28, and the second cross member 38 between the upper ends of the center pillar 26 and the right rear pillar 28 The gate-shaped structure A is formed by bridging the cross members 39 in an integrated manner.
- the sixth embodiment although it is disadvantageous in terms of forward visibility as compared with the first to fourth embodiments, a space in the first half of the cabin is secured when the vehicle falls down. It is advantageous when a cabin configuration is adopted, but it is easy to secure a living space in the rear half of the cabin. In addition, the visibility of the rear can be improved.
- each of the upper ends of the pillars 26 to 28 constituting the portal structure A has the same frame configuration as the first embodiment. It has a frame configuration in which a substantially triangular plate-shaped connecting member 40 is provided in an integrated state across the gap.
- a connecting member 41 formed in a flat box shape having a substantially triangular shape in a plan view is provided instead of the plate-like connecting member 40 of the seventh embodiment.
- the box-shaped connecting member 41 by using the box-shaped connecting member 41, its rigidity and strength can be increased as compared with the case of a mere plate, so that the deformation of the connecting member itself can be suppressed and the gate can be suppressed.
- the integral strength of the structural member can be further increased.
- the planar shape of the connecting member 41 may be substantially triangular, or may be other than a substantially triangular shape, such as a trapezoidal shape having a side substantially parallel to the rear side on the front side as shown in the figure. It may be shaped. This is the same in the seventh embodiment.
- a plurality of partitioning ribs 42 are provided in the inner space of the connecting member 41 as shown in FIG. Set it up.
- the ninth embodiment shown in FIG. 16 has a left-right reversed frame configuration as compared to the first embodiment. That is, the center pillar 26 is arranged on the right side, and the right rear roof member 43 and the first and second cross members 30, 31 are provided between the upper ends of the three pillars 26, 27, and 28 including the center pillar 26 to form a gate-shaped structure.
- Construct structure A. 44 is a right front roof member.
- the cabin is arranged on the right side, and the work attachment is arranged on the left side. This is suitable when the entrance of the door is provided on the right side.
- the center pillar, the first and second side pillars are provided so as to be located at the respective vertices of a triangle in plan view, and their upper ends are integrally connected by a connecting member.
- a gate-shaped structure whose outer shape is substantially triangular in plan view is configured.
- the entire structure can be lightened, which is particularly advantageous in terms of reducing the weight of the cabin. It becomes.
- the integral strength of the portal structure can be increased, and Assembly becomes easy.
- the connecting member since the connecting member is box-shaped, its rigidity and strength can be further increased, so that the deformation of the connecting member itself is suppressed, and the integral strength of the portal structure is further increased. Can be.
- the load can be reliably transmitted to the entire portal structure, and the deformation suppressing action can be ensured.
- the planar shape is substantially an isosceles triangle, and the torsional stiffness is the largest among the triangles, so that the portal structure is most difficult to deform. Therefore, the purpose of driver protection can be more reliably achieved.
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004167396 | 2004-06-04 | ||
JP2004-167396 | 2004-06-04 |
Publications (1)
Publication Number | Publication Date |
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WO2005118377A1 true WO2005118377A1 (ja) | 2005-12-15 |
Family
ID=35462824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/010127 WO2005118377A1 (ja) | 2004-06-04 | 2005-06-02 | 建設機械のキャビン |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3323698A1 (en) * | 2016-11-17 | 2018-05-23 | Ford Global Technologies, LLC | A motor vehicle having an asymmetric structure |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06240707A (ja) * | 1993-02-22 | 1994-08-30 | Kyowa Sangyo Kk | 建設機械の運転室 |
JP2000229548A (ja) * | 1998-12-08 | 2000-08-22 | Komatsu Ltd | 建設機械の安全ガード装置 |
JP2001123482A (ja) * | 1999-10-22 | 2001-05-08 | Hitachi Constr Mach Co Ltd | 建設機械の転倒時保護装置 |
JP2002250052A (ja) * | 2001-02-26 | 2002-09-06 | Komatsu Ltd | 自走車両の運転者保護構造 |
JP2003261963A (ja) * | 2002-03-07 | 2003-09-19 | Kobelco Contstruction Machinery Ltd | 落下物保護構造体 |
JP2004042740A (ja) * | 2002-07-10 | 2004-02-12 | Komatsu Ltd | 作業車両の運転室 |
JP2005035473A (ja) * | 2003-07-18 | 2005-02-10 | Kobelco Contstruction Machinery Ltd | 建設機械のキャブ |
-
2005
- 2005-06-02 WO PCT/JP2005/010127 patent/WO2005118377A1/ja active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06240707A (ja) * | 1993-02-22 | 1994-08-30 | Kyowa Sangyo Kk | 建設機械の運転室 |
JP2000229548A (ja) * | 1998-12-08 | 2000-08-22 | Komatsu Ltd | 建設機械の安全ガード装置 |
JP2001123482A (ja) * | 1999-10-22 | 2001-05-08 | Hitachi Constr Mach Co Ltd | 建設機械の転倒時保護装置 |
JP2002250052A (ja) * | 2001-02-26 | 2002-09-06 | Komatsu Ltd | 自走車両の運転者保護構造 |
JP2003261963A (ja) * | 2002-03-07 | 2003-09-19 | Kobelco Contstruction Machinery Ltd | 落下物保護構造体 |
JP2004042740A (ja) * | 2002-07-10 | 2004-02-12 | Komatsu Ltd | 作業車両の運転室 |
JP2005035473A (ja) * | 2003-07-18 | 2005-02-10 | Kobelco Contstruction Machinery Ltd | 建設機械のキャブ |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3323698A1 (en) * | 2016-11-17 | 2018-05-23 | Ford Global Technologies, LLC | A motor vehicle having an asymmetric structure |
CN108068911A (zh) * | 2016-11-17 | 2018-05-25 | 福特全球技术公司 | 具有不对称结构的机动车辆 |
US10272952B2 (en) | 2016-11-17 | 2019-04-30 | Ford Global Technologies, Llc | Motor vehicle having an asymmetric structure |
CN108068911B (zh) * | 2016-11-17 | 2022-03-29 | 福特全球技术公司 | 具有不对称结构的机动车辆 |
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